model n based in redwood city and makes revenue management software for life sciences and technology companies. the company's ceo in new york for that bell ringing. officially did the honors. that is on the new york stock exchange. shares popped right out of the gate. the stock price is up by close to 35%, trades on the market today. the company's share started a dollar more than what was expected by the experts. >>> american airlines defending its plan to give its outgoing ceo almost $20 million in severance pay. american airlines ceo is being replaced by the chief executive officer of us airways, as soon as the two companies complete their merger. a trustee overseeing american airlines bankruptcy objects to the payout. american says bankruptcy code does not apply because the payout will be made by the new airline after the merger pulls it out of bankruptcy. >>> ebay is taking aim at amazon overhauling fees for sellers on the website. starting in april, ebay will let sellers list items for free. ebay will charge 4% to 10% items sold. the new fees are lower than amazon, which charges